All flights across the US have been grounded due to a system failure at the Federal Aviation Administration, related to NOTAMs— impact on flights is likely to be global, more to follow.
FAA confirmation that an outage related to NOTAMS (these are essential notices & directives for flight crew, all personnel concerned with flight operations, ATC etc) is the issue – no estimated time of restoration. Flights will be unable to resume until resolved.
Latest: US FAA has ordered all airlines to suspend domestic flight departures until 9am ET “to allow the agency to validate the integrity of flight and safety information” — no word yet on any similar blanket suspensions on intl flights waiting to depart to US from abroad.
Source: ATCSCC